Supporting device for circuit board transportation and equipment thereof

Abstract

The utility model provides a supporting device for circuit board transportation and equipment thereof. The supporting device for circuit board transportation comprises a supporting mechanism and two elastic mechanisms. The supporting mechanism comprises a roller bracket and a plurality of flexible rollers; the roller support is provided with a roller groove, the flexible rollers are arranged in the roller groove at intervals and rotationally connected with the roller support, and the flexible rollers abut against the middle area of the circuit board in the transportation process. One elastic mechanism is mounted below one end of the roller bracket, and the other elastic mechanism is mounted below the other end of the roller bracket; each elastic mechanism comprises a base and an elastic assembly; one end of the elastic assembly is elastically connected with the base, and the other end of the elastic assembly is fixedly connected with the roller support. According to the utility model, the middle area of the circuit board can be reliably supported, so that the problem that the middle area of the circuit board with larger width is sunken and deformed is effectively solved, and finally, the production quality of the circuit board after reflow soldering is well ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a supporting device and equipment for transporting circuit boards. Background Art

[0002] Reflow soldering is a common production process in the electronics manufacturing industry. During the circuit board manufacturing process, the circuit board, with the mounted electronic components, is typically transported via a conveyor line to a reflow soldering machine. The reflow soldering machine heats the solder paste, melting it and fixing it to the pins or solder terminals of the electronic components, thereby soldering the components to the circuit board.

[0003] Among them, after the circuit board is heated at high temperature by the reflow soldering equipment, the circuit board will experience varying degrees of structural softening. In addition, the existing technology usually automatically transports the circuit board by placing it on conveyor belts on both sides of the conveyor line. That is, the conveyor belts on both sides of the conveyor line only provide transportation support for the two ends of the circuit board in the width direction. However, the structural softening phenomenon is particularly serious for circuit boards with larger widths. Therefore, on the conveyor line at the outlet end of the reflow soldering equipment, the middle area of ​​the circuit board with larger widths is easily affected by gravity and prone to concave deformation, making it difficult to ensure the production quality of the circuit board after reflow soldering. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a support device and equipment for circuit board transportation that can effectively solve the problem of concave deformation in the middle area of ​​circuit boards with larger widths during transportation on a conveyor line, thereby better ensuring the production quality of the circuit boards after reflow soldering.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A support device for transporting circuit boards, which is fixedly installed inside a conveyor line connected to an outlet end of a reflow soldering device and is located below a transport guide rail of the conveyor line. The support device comprises:

[0007] The support mechanism includes a roller bracket and a plurality of flexible rollers; the roller bracket is provided with a wheel groove, and the plurality of flexible rollers are spaced apart and arranged in the wheel groove and rotatably connected to the roller bracket, and the plurality of flexible rollers abut against the middle area of ​​the circuit board during transportation;

[0008] Two elastic mechanisms, one of the elastic mechanisms is installed below one end of the roller bracket, and the other elastic mechanism is installed below the other end of the roller bracket;

[0009] Each of the elastic mechanisms includes a base and an elastic component, wherein the base is arranged below the transport guide rail; one end of the elastic component is elastically connected to the base, and the other end of the elastic component is fixedly connected to the roller bracket.

[0010] In one embodiment, the base is provided with a sliding hole and a limiting hole that are connected in sequence;

[0011] The elastic component includes a sliding connecting rod and a spring component; the spring component is arranged in the limiting hole, and one end of the sliding connecting rod is slidably connected to the sliding hole and elastically abuts against the spring component.

[0012] In one embodiment, one end of the sliding connecting rod forms a sliding ring, and the sliding ring has a plurality of guide grooves distributed along the circumference;

[0013] A plurality of guide ribs are convexly provided on the inner wall of the sliding hole, and each of the guide ribs is arranged in the corresponding guide groove and is slidably connected with the sliding ring.

[0014] In one embodiment, a first positioning column is formed at the end of the sliding ring;

[0015] The base is formed with a second positioning column, which is located at the bottom of the limiting hole. One end of the spring member is sleeved on the first positioning column, and the other end of the spring member is sleeved on the second positioning column and elastically abuts against the end face of the sliding ring.

[0016] In one embodiment, the base is further provided with an air hole, and the air hole is used to connect the limiting hole with the external atmospheric space.

[0017] In one embodiment, each of the elastic mechanisms further includes a connecting plate, the bottom of the connecting plate is fixedly connected to the other end of the sliding connecting rod, and the top of the connecting plate is fixedly connected to the bottom of the roller bracket.

[0018] In one embodiment, the support mechanism further includes a plurality of first bearing members and a plurality of second bearing members; the outer ring of each first bearing member is fixedly connected to one side of the roller bracket, and the inner ring of each first bearing member is rotatably connected to one end of the rotating shaft of the corresponding flexible roller;

[0019] The outer ring of each second bearing member is fixedly connected to the other side of the roller bracket, and the inner ring of each second bearing member is rotatably connected to the other end of the rotating shaft of the corresponding flexible roller.

[0020] A supporting device for transporting circuit boards, comprising the supporting device for transporting circuit boards described in any of the above embodiments.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] Two elastic mechanisms are respectively installed at the two ends of the roller bracket. Through the elastic connection between the elastic component and the base, the roller bracket drives several flexible rollers to elastically abut against the middle area of ​​the circuit board during transportation, so that the flexible rollers and the circuit board form a good elastic soft contact, effectively avoiding the problem of scratching and damage to electronic components on the circuit board caused by rigid contact. At the same time, it can also provide reliable support for the middle area of ​​the circuit board, thus effectively solving the problem of concave deformation in the middle area of ​​the circuit board with a larger width, and ultimately better ensuring the production quality of the circuit board after reflow soldering. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the structure of a support device for transporting circuit boards in one embodiment;

[0025] Figure 2 for Figure 1 A schematic structural diagram of a support device for transporting circuit boards is shown;

[0026] Figure 3 for Figure 1 A structural cross-sectional view of a support device for transporting circuit boards is shown;

[0027] Figure 4 for Figure 3 A partial enlarged view of position A of the support device for transporting circuit boards;

[0028] Figure 5 for Figure 1 An exploded schematic diagram of the elastic mechanism of the support device for transporting circuit boards is shown;

[0029] Figure 1: Support device 10 for transporting circuit boards; reflow soldering equipment 100; conveyor line 200; transport guide rail 210; support mechanism 300; roller bracket 310; wheel groove 3101; flexible roller 320; circuit board 400; elastic mechanism 500; base 510; sliding hole 5101; limiting hole 5102; guide rib 5110; second positioning column 5120; air hole 5103; elastic component 520; sliding connecting rod 5210; sliding ring 5212; guide slide groove 5214; first positioning column 5216; spring member 5220; connecting plate 530. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The present disclosure provides a support device for transporting circuit boards, which is fixedly installed inside a conveyor line connected to the outlet end of a reflow soldering device and is located below the transport guide rail of the conveyor line. The support device includes a support mechanism and two elastic mechanisms. The support mechanism includes a roller bracket and a plurality of flexible rollers; the roller bracket is provided with a wheel groove, and a plurality of the flexible rollers are spaced apart in the wheel groove and rotatably connected to the roller bracket, and a plurality of the flexible rollers abut the middle area of ​​the circuit board during transportation; one of the elastic mechanisms is installed below one end of the roller bracket, wherein the other elastic mechanism is installed below the other end of the roller bracket; each of the elastic mechanisms includes a base and an elastic component, the base is provided below the transport guide rail; one end of the elastic component is elastically connected to the base, and the other end of the elastic component is fixedly connected to the roller bracket.

[0034] See also Figures 1 to 5 In order to better understand the supporting device 10 for transporting circuit boards of the present application, the supporting device 10 for transporting circuit boards is further explained below:

[0035] A supporting device 10 for transporting circuit boards in one embodiment is fixedly installed inside a conveyor line 200 connected to an outlet of a reflow soldering device 100 and is located below a transport guide rail 210 of the conveyor line 200. The supporting device 10 includes a supporting mechanism 300 and two elastic mechanisms 500. The support mechanism 300 includes a roller bracket 310 and a plurality of flexible rollers 320; the roller bracket 310 is provided with a wheel groove 3101, and a plurality of the flexible rollers 320 are arranged at intervals in the wheel groove 3101 and are rotatably connected to the roller bracket 310, and a plurality of the flexible rollers 320 abut against the central area of ​​the circuit board 400 during transportation; one of the elastic mechanisms 500 is installed below one end of the roller bracket 310, wherein another elastic mechanism 500 is installed below the other end of the roller bracket 310; each of the elastic mechanisms 500 includes a base 510 and an elastic component 520, and the base 510 is provided below the transport guide rail 210; one end of the elastic component 520 is elastically connected to the base 510, and the other end of the elastic component 520 is fixedly connected to the roller bracket 310.

[0036] In this embodiment, two elastic mechanisms 500 are respectively installed at both ends of the roller bracket 310. Through the elastic connection between the elastic component 520 and the base 510, the roller bracket 310 drives a plurality of flexible rollers 320 to elastically abut against the middle area of ​​the circuit board 400 during transportation, so that the flexible rollers 320 and the circuit board 400 form a good elastic soft contact, effectively avoiding the problem of scratches and damage to electronic components on the circuit board 400 caused by rigid contact. At the same time, it can also provide reliable support for the middle area of ​​the circuit board 400, thereby effectively solving the problem of concave deformation in the middle area of ​​the circuit board 400 with a larger width, and ultimately better ensuring the production quality of the circuit board 400 after reflow soldering.

[0037] like Figure 1 and Figure 5 As shown, in one embodiment, the base 510 is provided with a sliding hole 5101 and a limiting hole 5102 that are connected in sequence; the elastic component 520 includes a sliding connecting rod 5210 and a spring member 5220; the spring member 5220 is disposed in the limiting hole 5102, and one end of the sliding connecting rod 5210 is slidably connected to the sliding hole 5101 and elastically abuts against the spring member 5220. In one embodiment, one end of the sliding connecting rod 5210 forms a sliding ring 5212, and the sliding ring 5212 has a plurality of guide grooves 5214 distributed along the circumference; the inner wall of the sliding hole 5101 is provided with a plurality of guide ribs 5110, each of which is disposed in a corresponding guide groove 5214 and is slidably connected to the sliding ring 5212.

[0038] It can be understood that by matching the guide groove 5214 on the sliding ring 5212 with the guide rib 5110 in the sliding hole 5101, one end of the sliding connecting rod 5210 can slide relatively smoothly with the sliding hole 5101 through the sliding ring 5212. That is, when the flexible roller 320 abuts against the middle area of ​​the circuit board 400 during transportation, the elastic component 520 is subjected to force so that one end of the sliding connecting rod 5210 and the spring member 5220 are automatically elastically adjusted to better ensure the stability of the circuit board 400 during transportation.

[0039] It should be noted that the user can regularly add a lubricant into the sliding hole 5101 to effectively improve the sliding smoothness between one end of the sliding connecting rod 5210 and the sliding hole 5101.

[0040] like Figure 4 and Figure 5As shown, in one embodiment, a first positioning column 5216 is formed at the end of the sliding ring 5212; the base 510 is formed with a second positioning column 5120, and the second positioning column 5120 is located at the bottom of the limiting hole 5102, and one end of the spring member 5220 is sleeved on the first positioning column 5216, and the other end of the spring member 5220 is sleeved on the second positioning column 5120, and elastically abuts against the end face of the sliding ring 5212.

[0041] It can be understood that the spring member 5220 is effectively positioned by the first positioning column 5216 and the second positioning column 5120 so that the action force and reaction force of the spring member 5220 are well aligned with the central axis of the sliding connecting rod 5210 .

[0042] like Figure 4 and Figure 5 As shown, in one embodiment, the base 510 is further provided with an air hole 5103, and the air hole 5103 is used to connect the limiting hole 5102 with the external atmospheric space.

[0043] It can be understood that since the user adds a lubricant into the sliding hole 5101 and the sliding gap between the sliding ring 5212 and the sliding hole 5101 is small, in order to avoid the formation of a high and low pressure difference between the internal space of the limiting hole 5102 and the external atmospheric space, which makes the sliding ring 5212 of the sliding connecting rod 5210 unable to work, in this embodiment, one end of the air hole 5103 is connected to the inner wall of the limiting hole 5102, and the other end of the air hole 5103 is connected to the external atmospheric space, thereby ensuring the rationality of the structural design of the base 510.

[0044] like Figures 1 to 4 As shown, in one embodiment, each elastic mechanism 500 further includes a connecting plate 530, the bottom of which is fixedly connected to the other end of the sliding connecting rod 5210, and the top of which is fixedly connected to the bottom of the roller bracket 310. This provides a larger support surface for the roller bracket 310, ensuring more stable installation of the roller bracket 310, thereby enabling the flexible roller 320 to provide reliable and stable support for the central area of ​​the circuit board 400. This effectively solves the problem of concave deformation in the central area of ​​a wider circuit board 400, ultimately ensuring better production quality of the circuit board 400 after reflow soldering.

[0045] like Figure 1 and Figure 2As shown, in one embodiment, the support mechanism 300 also includes a plurality of first bearing members (not shown) and a plurality of second bearing members (not shown); the outer ring of each first bearing member (not shown) is fixedly connected to one side of the roller bracket 310, and the inner ring of each first bearing member (not shown) is rotatably connected to one end of the rotating shaft of the corresponding flexible roller 320; the outer ring of each second bearing member (not shown) is fixedly connected to the other side of the roller bracket 310, and the inner ring of each second bearing member (not shown) is rotatably connected to the other end of the rotating shaft of the corresponding flexible roller 320.

[0046] It can be understood that the first bearing member (not shown) and the second bearing member (not shown) provide effective rotational connection support for the flexible roller 320 and the roller bracket 310, ensuring the structural rationality of the support mechanism 300.

[0047] The present application also provides a supporting device for transporting circuit boards, including the supporting device 10 for transporting circuit boards described in any of the above embodiments.

[0048] In this embodiment, the supporting equipment for circuit board transportation applies the above-mentioned supporting device for circuit board transportation, which better provides reliable support for the middle area of ​​the circuit board on the conveyor line, thereby effectively solving the problem of concave deformation in the middle area of ​​the circuit board with a larger width, and ultimately better ensuring the production quality of the circuit board after reflow soldering.

[0049] Compared with the prior art, the present invention has at least the following advantages:

[0050] Two elastic mechanisms are respectively installed at the two ends of the roller bracket. Through the elastic connection between the elastic component and the base, the roller bracket drives several flexible rollers to elastically abut against the middle area of ​​the circuit board during transportation, so that the flexible rollers and the circuit board form a good elastic soft contact, effectively avoiding the problem of scratching and damage to electronic components on the circuit board caused by rigid contact. At the same time, it can also provide reliable support for the middle area of ​​the circuit board, thus effectively solving the problem of concave deformation in the middle area of ​​the circuit board with a larger width, and ultimately better ensuring the production quality of the circuit board after reflow soldering.

[0051] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A support device for transporting circuit boards, which is fixedly installed inside a conveyor line connected to the outlet end of a reflow soldering device and is located below the conveyor rail of the conveyor line, characterized in that: The supporting device comprises: The support mechanism includes a roller bracket and a plurality of flexible rollers; the roller bracket is provided with a wheel groove, and the plurality of flexible rollers are spaced apart and arranged in the wheel groove and rotatably connected to the roller bracket, and the plurality of flexible rollers abut against the middle area of ​​the circuit board during transportation; Two elastic mechanisms, one of the elastic mechanisms is installed below one end of the roller bracket, and the other elastic mechanism is installed below the other end of the roller bracket; Each of the elastic mechanisms includes a base and an elastic component, wherein the base is arranged below the transport guide rail; one end of the elastic component is elastically connected to the base, and the other end of the elastic component is fixedly connected to the roller bracket.

2. The supporting device for transporting circuit boards according to claim 1, characterized in that: The base is provided with a sliding hole and a limiting hole which are connected in sequence; The elastic component includes a sliding connecting rod and a spring component; the spring component is arranged in the limiting hole, and one end of the sliding connecting rod is slidably connected to the sliding hole and elastically abuts against the spring component.

3. The supporting device for transporting circuit boards according to claim 2, characterized in that: One end of the sliding connecting rod forms a sliding ring, and the sliding ring has a plurality of guide grooves distributed along the circumference; A plurality of guide ribs are convexly provided on the inner wall of the sliding hole, and each of the guide ribs is arranged in the corresponding guide groove and is slidably connected with the sliding ring.

4. The supporting device for transporting circuit boards according to claim 3, characterized in that: A first positioning column is formed at the end of the sliding ring; The base is formed with a second positioning column, which is located at the bottom of the limiting hole. One end of the spring member is sleeved on the first positioning column, and the other end of the spring member is sleeved on the second positioning column and elastically abuts against the end face of the sliding ring.

5. The supporting device for transporting circuit boards according to claim 2, characterized in that: The base is further provided with an air hole, which is used to connect the limiting hole with the external atmospheric space.

6. The supporting device for transporting circuit boards according to claim 2, characterized in that: Each of the elastic mechanisms further includes a connecting plate, the bottom of the connecting plate is fixedly connected to the other end of the sliding connecting rod, and the top of the connecting plate is fixedly connected to the bottom of the roller bracket.

7. The supporting device for transporting circuit boards according to claim 1, characterized in that: The support mechanism further includes a plurality of first bearing members and a plurality of second bearing members; the outer ring of each first bearing member is fixedly connected to one side of the roller bracket, and the inner ring of each first bearing member is rotatably connected to one end of the rotating shaft of the corresponding flexible roller; The outer ring of each second bearing member is fixedly connected to the other side of the roller bracket, and the inner ring of each second bearing member is rotatably connected to the other end of the rotating shaft of the corresponding flexible roller.

8. A supporting device for transporting circuit boards, characterized in that: The invention comprises a supporting device for transporting circuit boards according to any one of claims 1 to 7.

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